Consume of location manager flutter

homescreen.dart

    LocationManager(callback: (state) {
      print("State ${state.toString()}");
      switch(state.state) {
        case LocationEnum.ERROR:
          print("error ${state.message}");
          break;
        case LocationEnum.LOADING:
          // TODO: Handle this case.
          break;
        case LocationEnum.REQUESTING_LOCATION_SERVICE:
          // TODO: Handle this case.
          break;
        case LocationEnum.REQUESTING_LOCATION_PERMISSION:
          // TODO: Handle this case.
          break;
        case LocationEnum.LOCATION_FOUND:
          // TODO: Handle this case.
          break;
      }
    }).requestLocation();